Zooming controller

a controller and zooming technology, applied in the field of zooming controllers, can solve the problems of lack of selectivity of types of controls, time-consuming and frustrating tasks such as adjusting key frames in video films or manipulating audio samples, and the scroll bar can handle only two orders of magnitude, and achieve the effect of cost-effectiveness
US20020080151A1Inactive Publication Date: 2002-06-27APPLE INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
APPLE INC
Publication Date
2002-06-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and device for accessing a broad data field having a fine resolution. The user selects a scale which can be varied. The scale controls a range within the data field. By moving the range to encompass different portions of the data field, the user can scan that portion of the data field. The present invention allows the user to simultaneously select the scale while moving the range over different portions of the data field. Thus, the user can "zoom in" and "zoom out" of different portions of the data field. In one embodiment of the present invention, a particular piece of data within the broad data field can be accessed. First, the scale is selectively varied, thereby controlling a range within the data field. Then, the range is moved to encompass portions of the data field in which the piece of data resides. Next, the scale is successively decreased while, simultaneously, points successively closer to the location are kept with the range. The scale is decreased (i.e., increasing the range's resolution) and the range is moved in this manner until the piece of data is actually accessed.
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Description

[0001] The present invention pertains to the field of computer systems. In particular, the present invention relates to a method and device enabling a computer system to access a data field having a broad range and a fine resolution.

[0002] A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by any one of the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.

[0003] Many types of data have a broad range and a fine resolution. For example, a videodisk is composed of a continuum of frames. The video disk can store up to a series of tens of thousands of frames. Thus, it has approximately five orders of magnitude. Likewise, electronic music composition requires controlling frequencies over the entire audible scale ranging from 15 to 20,000 hertz. Thus, three orders of...

Claims

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